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30 lines
1.1 KiB
LLVM
30 lines
1.1 KiB
LLVM
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; RUN: llc < %s -mtriple=aarch64-none-linux-gnu -mattr=+neon | FileCheck %s
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; Check that the DAGCombiner does not crash with an assertion failure
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; when performing a target specific combine to simplify a 'or' dag node
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; according to the following rule:
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; (or (and B, A), (and C, ~A)) => (VBSL A, B, C)
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; The assertion failure was caused by an invalid comparison between APInt
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; values with different 'BitWidth'.
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define <8 x i8> @test1(<8 x i8> %a, <8 x i8> %b) {
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%tmp1 = and <8 x i8> %a, < i8 -1, i8 -1, i8 0, i8 0, i8 -1, i8 -1, i8 0, i8 0 >
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%tmp2 = and <8 x i8> %b, < i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0 >
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%tmp3 = or <8 x i8> %tmp1, %tmp2
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ret <8 x i8> %tmp3
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}
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; CHECK-LABEL: test1
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; CHECK: ret
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define <16 x i8> @test2(<16 x i8> %a, <16 x i8> %b) {
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%tmp1 = and <16 x i8> %a, < i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1 >
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%tmp2 = and <16 x i8> %b, < i8 -1, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0, i8 0 >
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%tmp3 = or <16 x i8> %tmp1, %tmp2
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ret <16 x i8> %tmp3
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}
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; CHECK-LABEL: test2
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; CHECK: ret
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